The Palace Bridge across the Bolshaya Neva connects the spit of Vasilyevsky Island with Admiralteysky Island on the left bank of the Neva. From 1856 until the construction of a permanent crossing, a pontoon bridge was installed at this location. In 1879, experimental electric lights by Pavel Yablochkov were installed on it. A permanent five-span drawbridge 260 m long was built in 1912–1916 according to the design of engineer Andrei Pshenitsky. He managed to achieve an amazing effect: the bridge seems to spread across the water, preserving the panorama of the Neva banks. For a long time, the bridge remained devoid of decorative decoration; cast iron railings appeared only in 1939 (sculptor Igor Krestovsky based on a drawing by architect Lev Noskov).